Executive/Council Action Form (ECAF)
ITEM TITLE:
Title
Motion 24-449, authorizing the County Executive to sign Supplement No. 2 to Professional Services Agreement CCF03-22 with David Evans and Associates, Inc. to provide design services for the Snohomish River Bridge #1 Scour Mitigation Project
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DEPARTMENT: Public Works
ORIGINATOR: Julie.high@snoco.org
EXECUTIVE RECOMMENDATION: Ken Klein 10/17/24
PURPOSE: Approval of Supplement No. 2 to Professional Services Agreement CCF03-22 with David Evans & Associates, Inc. to transfer assignment from TranTech Engineering, LLC and provide design services for the Snohomish River Bridge #1 Scour Mitigation Project.
BACKGROUND:
- The Department of Public Works (PW) has received federal bridge program funding to complete a scour mitigation project on Snohomish River Bridge #1 which carries Airport Way/Avenue D over the Snohomish River.
- The 360-foot-long three span bridge was built in 1983. This is a heavily used crossing with an average daily traffic count of 18,119, of which 11% are trucks and it is the alternate route for North and South bound SR9 bridge 9, 118. The bridge scour evaluation, updated in November 2019, showed the bridge scour as 'critical' with a NBIS/WSBIS scour code of 3.
- PW selected the consulting firm, TranTech Engineering, LLC, using federal, State and County policies and practices.
- The initial agreement amount of $794,593.00 was approved by Council in December 2022.
- PW has since processed one no-cost supplement to the original agreement in September 2023.
- TranTech Engineering, LLC was acquired by David Evans and Associates, Inc. in September 2024. This acquisition was recorded with the Secretary of State of Washington.
- PW has determined the need for additional design services to further explore cost-savings alternatives for the new bridge design.
- Total payments for services under this supplement shall not exceed $208,844.15 for an amended total amount not to exceed $1,003,4...
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